Audi A6 S6 A7 4G8 A8 S8 R8 RS6 RS7 Heater Duct Double Grommet 4H0819699D

The Audi A6 S6 A7 4G8 A8 S8 R8 RS6 RS7 Dual Heater Bushing is an original heating system component designed for advanced Audi models. Thanks to its factory design, it ensures stable heating medium flow and proper sealing of connections within the heater core, which translates to predictable operation of the entire system. This solution is dedicated to users who expect precise fitment and compliance with factory specifications.

Specifications and technical data

• SKU: 4H0819699D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0819699D
• Substitutable numbers: 4H0819699D, 4H0 819 699 D
• Category: Other Air Conditioning & Heating

Purpose and Function in the Heating System

The dual heater bushing is responsible for guiding and separating the heating medium circuit between the heater core and the rest of the cooling system. In vehicles such as Audi A6, S6, A7 4G8, A8, S8, R8, RS6, or RS7, this component is important for:

• maintaining the tightness of connections in the heater core area,
• stable mounting of hoses and spigots,
• reducing the risk of leaks in the engine bay or bulkhead,
• preserving proper fluid flow in the cabin heating circuit.

Thanks to its design, which is consistent with factory solutions, the bushing works with the heating system without requiring installation modifications, which is particularly important in vehicles with complex thermal architectures.

Advantages of Using an Original Audi Heater Bushing

Using a component from the Audi OE group allows you to maintain the heating system's operating parameters in line with the manufacturer's intentions. In practice, this means:

• secure geometric fit to the sockets and hoses in the specific model,
• retention of factory mounting points and hose routing,
• reduction of stress on hoses and spigots due to the bushing's proper geometry,
• consistency with other components of the cooling and heating system.

For users of S and RS series models, this is important not only for operational reasons but also for servicing – the system operates under increased thermal loads, which is why a correctly selected intermediate heater element is crucial for long-term, stable performance.

Installation and Operational Characteristics

The dual heater bushing has been designed as a component that works with the factory mounting system in the body and engine bay. Proper hose routing and maintaining appropriate bend radii reduce the risk of:

• hose microcracks due to vibrations,
• mechanical overloads on the heater core spigots,
• uncontrolled hose movement during engine operation.

For workshops and service centers, this means a predictable installation process, and for the user – stable cabin heating system operation across a wide range of temperatures and loads.

Component Condition and Service Application

The offered bushing is from the group of original Audi components and is intended for service applications in vehicles where the replacement of the intermediate heater element is necessary. It is suitable for both standard heating system repairs and more extensive work involving dashboard removal or cooling system upgrades.

Expanding Technical Knowledge and Part Selection

If you are interested in how the technical solutions in sporty Audi versions differ from standard models – including in terms of cooling, braking, and chassis systems – it is worth consulting expert material. You can find a practical comparison of the RS series construction with other variants in the article Audi RS vs Other Models – What Lies Under the Hood and Chassis?, which helps to better understand the specifics of these vehicles and to consciously select replacement components.

If you are planning a comprehensive repair or upgrade of the heating and cooling system area in your Audi and need other elements from the same group, such as spigots, connectors, or additional guide bushings, check the available parts in the Other Audi category.